某数学兴趣小组到观音湖湿地公园测量临仙阁的高度.如图所示,记
为临仙阁的高,测量小组选取与塔底
在同一水平面内的两个测量点
.现测得
.
,
m,在
点处测得塔顶
的仰角为30°,则临仙阁高
大致为( )m(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be99fa94a1f3e4964fcc13a14fab9ba5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec98a4fefbd6799a2832c3d9788bf144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a719f0b868f9151cd644a4757a3961.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7878de92b0553aecc9d2271f06c23e50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be99fa94a1f3e4964fcc13a14fab9ba5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79947074dd62c428792546b88ac78e0e.png)
A.31.41m | B.51.65m | C.61.25m | D.74.14m |
23-24高三上·四川遂宁·期中 查看更多[4]
四川省遂宁市2024届高三上学期零诊考试数学(理科)试题四川省遂宁市2024届高三上学期零诊考试数学(文科)试题(已下线)第12讲 6.4.3 第3课时 余弦定理、正弦定理应用举例-【帮课堂】(人教A版2019必修第二册)吉林省长春市东北师范大学附属中学2023-2024学年高一下学期数学学科大练习7
更新时间:2023-11-29 15:04:47
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【推荐1】泰姬陵是印度在世界上知名度最高的古建筑之一,被列为“世界文化遗产”.秦姬陵是印度古代皇帝为了纪念他的皇妃建造的,于1631年开始建造,用时22年,距今已有366年历史.如图所示,为了估算泰姬陵的高度,现在泰姬陵的正东方向找一参照物
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【推荐2】如图甲(左),圣
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